Jamwitt
LIFE MEMBER
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Subscribers do not see these advertisements
Subscribers do not see these advertisements
2000w / 230v = 8.7 amps
a couple of 700watt oil radiators would give a better heat distribution...one at the front and one at the back
if possible stand oil rads on a tin tray in case they start to leak.
not a common occurrence but always possible
We're using an 1800 watt Delonghi heater[HI] very kindly donated by Salopian on the Marjal meet. [/HI]We're using it on half power; it is more than adequate for temperatures around 5-6 degrees which we have had some nights and mornings since being out in Spain. We haven't tripped any electric supplies with it including a 6 amp ACSI site and run it in conjunction with computers, fridge, etc.
At home during the winter we use one small panel radiator and it is surprising how effective that is - bearing in mind our van is quite small (4 berth) - 5.82 metres length.
Subscribers do not see these advertisements
Hi we going to setthorns on the 27 dec in the new forest as we will be on electric hook up want to take small electric heater,as we don't what to trip out on hook up wandered how to work out amps,the heater we might take 2000 watts
Subscribers do not see these advertisements
the calculation method is correct but the variables are wrong.Hi Jamwitt . To calculate amps , divide total wattage by 240 .....2000 watts divided by 240 = 8.33 amps,. That's the way I've been told ...hope it's correct
Have a nice trip
Tony
Subscribers do not see these advertisements
the calculation method is correct but the variables are wrong.
UK benchmark for mains voltage is now 230v...not 240v...so 8.7amps is correct
Subscribers do not see these advertisements
I quite fancy one of these though http://www.argos.co.uk/static/Product/partNumber/4111012.htm but not the price.
For those into the calculations don’t forget it’s the rated voltage that maters and that is rarely quoted. For instance a 1,000 watt heater element rated for and run on 240 volts would draw 4.166 amps. If the voltage was dropped to 230volts it would draw 3.993 amps and give 918.4 watts. The resistance of the element (57.6 ohms in this example) remains the same. The reverse would also be true, the higher the voltage the higher the current and power output, until it goes bang /QUOTE]
Sorry that's incorrect. The voltage and current are inversely proportional. Ohms law. So, if the voltage drops the current increases and visa versa for a fixed load. Consequently, the current drawn by a 1kW element, at 230V, would be higher than at 240V and in fact would be 4.35A.
Subscribers do not see these advertisements
For those into the calculations don’t forget it’s the rated voltage that maters and that is rarely quoted. For instance a 1,000 watt heater element rated for and run on 240 volts would draw 4.166 amps. If the voltage was dropped to 230volts it would draw 3.993 amps and give 918.4 watts. The resistance of the element (57.6 ohms in this example) remains the same. The reverse would also be true, the higher the voltage the higher the current and power output, until it goes bang /QUOTE]
[HI]Sorry that's incorrect. The voltage and current are inversely proportional.[/HI] Ohms law. So, if the voltage drops the current increases and visa versa for a fixed load. Consequently, the current drawn by a 1kW element, at 230V, would be higher than at 240V and in fact would be 4.35A.
You are assuming a fixed wattage. The figures I am quoting are for a unit where the voltage is varied.
You are assuming a fixed wattage. The figures I am quoting are for a unit where the voltage is varied.
Sorry, still not quite with that. Do you mean where an appliance is designed to operate on dual voltages, say 110/230V, and is switchable between the two?
I would agree, with that sort of arrangement the wattage may be changed due to the switching operation ie change in voltage rating.
Subscribers do not see these advertisements
Sorry, still not quite with that. Do you mean where an appliance is designed to operate on dual voltages, say 110/230V, and is switchable between the two?
I would agree, with that sort of arrangement the wattage may be changed due to the switching operation ie change in voltage rating.
Hi
Not quite. Taking a more obvious item such as a car bulb, if you turn the lights on and then start the car the lights will dim due to the reduced voltage whilst the starter is running. The bulb may be rated at say 60 watts with 12 volts but with the volts dropping then the wattage output will drop as will the current it is taking.
What you are thinking about is where the 60 watt bulb is on 12 volts it will take 5 amps, a 60 watt bulb designed and running on 240 volts would only take 0.25 of an amp.
The heater is designed for a fixed voltage say 240 volts to give its full output. If you moved to a lower voltage area, say going from the UK with 240 volts to Europe with a 230 volt supply, the wattage output would be lower as would the current drawn. You need to take the resistance of the element into account, as this would be fixed for the unit, by using ohms law.
It can get confusing but I hope this helps.
Mike in Gozo
Subscribers do not see these advertisements
Whe use a small fan heater which we have found distributes the heat better and quicker than a static heater.
Malc.